The IC HV9925 from Supertex Inc. is often a high-efficiency LED driver/controller device furnished with an original PWM switched LED dimming facility. The PWM programming allows you save LED power making the circuit extremely power efficient and longer lasting. The device is specially made for driving the vulnerable high-bright white LEDs from input voltages ranging up to 400 VDC.
The filter [1] consists of a simple body, a stainless steel filter, a discharge part, a transmission device and an electrical control part. When the filter works, the water that is to be filtered is streamed by the water filter
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